Chemical Reactions

6. The arrow symbol used to indicate the direction of a chemical reaction.
9. A substance that undergoes a chemical reaction.
10. The process of absorbing heat from the surroundings during a chemical reaction.
12. The number written below and to the right of a chemical symbol in a chemical formula.
13. The process of breaking down a compound into simpler substances.
14. The process of combining two or more substances to form a new compound.
15. A chemical reaction that releases energy in the form of heat and light.

1. A chemical reaction in which a compound reacts with oxygen to produce carbon dioxide and water.
2. The process of releasing heat into the surroundings during a chemical reaction.
3. The process of forming a solid from a solution during a chemical reaction.
4. A chemical reaction in which two elements in different compounds exchange places to form two new compounds.
5. A chemical reaction in which a single element replaces another element in a compound.
7. A substance that is formed as a result of a chemical reaction.
8. of Conservation of mass The principle that states that mass is neither created nor destroyed in a chemical reaction.
11. The number written in front of a chemical formula to balance a chemical equation.